I nā makahiki i hala iho nei, ua loaʻa ka manaʻo nui i ka conductivity thermal o nā huahana rubber.Hoʻohana nui ʻia nā huahana ʻōpala thermally conductive i nā kahua o ka aerospace, aviation, electronics, a me nā mea uila e pāʻani i ka hana i ka conduction wela, insulation a me ka haʻalulu.He mea koʻikoʻi ka hoʻomaikaʻi ʻana o ka thermal conductivity no nā huahana thermally conductive rubber.Hiki ke hoʻololi maikaʻi i ka wela, ka mea nui i ka densification a me ka miniaturization o nā huahana uila, a me ka hoʻomaikaʻi ʻana i ko lākou hilinaʻi a me ka hoʻonui ʻana i ko lākou ola lawelawe.

I kēia manawa, pono e loaʻa i nā mea hoʻohana i nā kaila nā hiʻohiʻona o ka hana wela haʻahaʻa a me ka conductivity thermal kiʻekiʻe.Ma ka lima hoʻokahi, i ka hana vulcanization huila, ua hoʻomaikaʻi ʻia ka hana hoʻoili wela o ka ʻōpala, hoʻonui ʻia ka nui o ka vulcanization, a ua hoʻemi ʻia ka hoʻohana ʻana i ka ikehu;ʻO ka wela i hana ʻia i ka wā hoʻokele e hoʻemi i ka mahana o ke kupapaʻu a hōʻemi i ka hoʻohaʻahaʻa ʻana i ka hana o ka pila ma muli o ka wela nui.Hoʻoholo nui ʻia ka conductivity thermal o ka thermally conductive rubber e ka rubber matrix a me ka thermally conductive filler.ʻOi aku ka maikaʻi o ka hoʻokō wela o nā ʻāpana a i ʻole ka fibrous thermal conductive filler ma mua o ka matrix matrix.

ʻO nā mea hoʻopihapiha thermally conductive i hoʻohana pinepine ʻia ʻo ia nā mea penei:

1. ʻAha Cubic Beta ʻāpana nano silikon carbide (SiC)

ʻO ka nano-scale silicon carbide pauka e hoʻopili ai i nā kaulahao conduction wela, a ʻoi aku ka maʻalahi o ka lālā me nā polymers, e hana ana i ka Si-O-Si chain heat conduction skeleton ma ke ʻano he ala wela nui, e hoʻomaikaʻi nui ai i ka conductivity thermal o ka mea i hoʻohui ʻia me ka ʻole o ka hōʻemi ʻana. mea hoʻohui ʻia ʻO nā mea mekini.

Hoʻonui ka thermal conductivity o ka silicon carbide epoxy composite material me ka piʻi ʻana o ka nui o ka silicon carbide, a hiki i ka nano-silicon carbide ke hāʻawi i ka mea hoʻohui i ka conductivity thermal maikaʻi ke haʻahaʻa ka nui.Hoʻonui mua ka ikaika flexural a me ka ikaika hopena o ka silicon carbide epoxy composite a laila hoʻemi me ka piʻi ʻana o ka nui o ka silicon carbide.Hiki ke hoʻomaikaʻi maikaʻi i ka hoʻololi ʻana i ka ʻili o ka silicon carbide i ka conductivity thermal a me nā waiwai mechanical o ka mea hoʻohui.

Loaʻa i ka Silicon carbide nā waiwai kemika paʻa, ʻoi aku ka maikaʻi o kāna conductivity thermal ma mua o nā mea hoʻopiha semiconductor ʻē aʻe, a ʻoi aku ka nui o kāna conductivity thermal ma mua o ka metala ma ke ana wela.Ua noiʻi nā mea noiʻi mai Beijing University of Chemical Technology i ka hana ʻana i ka wela o ka alumina a me ka silicon carbide reinforced silicone rubber.Hōʻike nā hopena i ka piʻi ʻana o ka thermal conductivity o ka silicone rubber e like me ka piʻi ʻana o ka nui o ka silicon carbide;ke like ka nui o ka carbide silika, ʻoi aku ka nui o ka conductivity thermal o ka mea liʻiliʻi liʻiliʻi i hoʻopaʻa ʻia i ka pahu silikoni i hoʻoikaika ʻia ma mua o ka nui o ka nui o ka nui.ʻOi aku ka maikaʻi o ka hoʻoili ʻana i ka wela o ka pahu silika i hoʻoikaika ʻia me ka silicon carbide ma mua o ka alumina i hoʻoikaika ʻia.Ke 8/2 ka nui o ka lakio o ka alumina / silicon carbide a ʻo ka huina he 600 mau ʻāpana, ʻoi aku ka maikaʻi o ka conductivity thermal o ka silicon rubber.

2. Aluminum Nitride (ALN)

ʻO ka nitride alumini he aniani atomika a no ka nitride daimana.Hiki ke noho paʻa ma kahi wela kiʻekiʻe o 2200 ℃.Loaʻa iā ia ka conductivity thermal maikaʻi a me ka hoʻonui haʻahaʻa haʻahaʻa haʻahaʻa, e hana ana i kahi mea haʻalulu maikaʻi.ʻO ka conductivity thermal o ka nitride aluminika he 320 W · (m · K) -1, kahi kokoke i ka conductivity thermal o ka boron oxide a me ka silicon carbide, a ʻoi aku ka nui o 5 mau manawa ma mua o ka alumina.Ua aʻo nā mea noiʻi mai ke Kulanui o ʻEpekema a me ʻenehana ʻo Qingdao i ka conductivity thermal o nā alumini nitride i hoʻoikaika ʻia i ka EPDM rubber composites.Hōʻike nā hopena: i ka piʻi ʻana o ka nui o ka nitride aluminika, piʻi ka conductivity thermal o ka mea hoʻohui;ka thermal conductivity o ka mea hui me ka alumini nitride he 0.26 W·(m·K) -1, ke piʻi ka nui o ka alumini nitride i Ma 80 mau ʻāpana, hiki i ka thermal conductivity o ka mea hui 0.442 W·(m·K) -1, he piʻi o 70%.

3. Nano alumina (Al2O3)

ʻO Alumina kahi ʻano multifunctional inorganic filler, nona ka conductivity thermal nui, dielectric mau a me ke kūpaʻa maikaʻi.Hoʻohana nui ʻia ia i loko o nā mea hoʻohui ʻia.

Ua hoʻāʻo nā mea noiʻi mai ke Kulanui o ʻenehana Kimia ʻo Beijing i ka hoʻoili wela o nā nano-alumina/carbon nanotube/nā kumulāʻau kūlohelohe.Hōʻike nā hopena i ka hoʻohana ʻana o ka nano-alumina a me ka carbon nanotubes i kahi hopena synergistic i ka hoʻomaikaʻi ʻana i ka conductivity thermal o ka mea hoʻohui;i ka wā e mau ai ka nui o nā nanotubes kalapona, hoʻonui ʻia ka conductivity thermal o ka mea i hui pū ʻia me ka hoʻonui ʻana i ka nui o ka nano-alumina;i ka 100 I ka hoʻohana 'ana i ka nano-alumina e like me ka thermally conductive filler, i ka thermal conductivity o ka mea composite piʻi e 120%.Ke hoʻohana ʻia nā ʻāpana 5 o carbon nanotubes e like me ka hoʻopiha hoʻopihapiha thermally, hoʻonui ka conductivity thermal o ka mea composite e 23%.Ke hoʻohana ʻia nā ʻāpana 100 o ka alumina a me nā ʻāpana 5 Ke hoʻohana ʻia nā nanotubes kalapona ma ke ʻano he mea hoʻopihapiha thermally conductive, piʻi ka thermal conductivity o ka mea hoʻohui i ka 155%.Ka ho'āʻo no hoi e huki i keia mau hopena elua: Mua, i ka nui o carbon nanotubes mau, e like me ka nui o ka nano-alumina piʻi, ka hoʻopihapiha hoʻopihapiha hoʻolālā i hana ʻia e ka conductive filler particles i loko o ka rubber mahuahua mālie, a me ka poho kumu o ka. piʻi mālie ka mea hui.Ke hoʻohana pū ʻia nā ʻāpana 100 o ka nano-alumina a me 3 mau ʻāpana o nā nanotubes kalapona, ʻo ka hoʻoulu ʻana o ka wela hoʻoikaika ikaika o ka mea i hoʻohui ʻia he 12 ℃ wale nō, a ʻoi aku ka maikaʻi o nā waiwai mechanical dynamic;ʻO ka lua, ke hoʻopaʻa ʻia ka nui o nā nanotubes kalapona, e like me ka piʻi ʻana o ka nano-alumina, ʻo ka paʻakikī a me ka haʻalulu ikaika o nā mea i hoʻohui ʻia e hoʻonui, ʻoiai ke emi nei ka ikaika tensile a me ka elongation ma ka haʻihaʻi.

4. Kaona Nanotube

Loaʻa i ka carbon nanotubes nā waiwai kino maikaʻi loa, ka hoʻoheheʻe wela a me ka conductivity uila, a he mea hoʻopihapiha hoʻopihapiha kūpono.Ua loaʻa ka manaʻo nui i kā lākou mau mea hoʻohuihui hoʻoikaika kino.Hoʻokumu ʻia ka carbon nanotubes e nā ʻāpana ʻōwili o nā pepa graphite.He ʻano mea graphite hou lākou me kahi ʻano cylindrical me ke anawaena o nā ʻumi nanometer (10-30nm, 30-60nm, 60-100nm).He 3000 W·(m·K) -1 ka thermal conductivity o carbon nanotubes, ʻo ia ka 5 manawa o ka thermal conductivity o ke keleawe.Hiki i ka carbon nanotubes ke hoʻomaikaʻi nui i ka conductivity thermal, conductivity uila a me nā waiwai kino o ka lāʻau, a ʻoi aku ka maikaʻi o kā lākou hoʻoikaika a me ka conductivity thermal ma mua o nā mea hoʻopihapiha kahiko e like me ke kalapona ʻeleʻele, ka carbon fiber a me ke aniani fiber.Ua hana nā mea noiʻi mai ke Kulanui o ʻEpekema a me ʻenehana ʻo Qingdao i ka noiʻi ʻana e pili ana i ka conductivity thermal o carbon nanotubes/PDM composite material.Hōʻike nā hopena: hiki i nā nanotubes kalapona ke hoʻomaikaʻi i ka conductivity thermal a me nā waiwai kino o nā mea hoʻohui;e like me ka piʻi ʻana o ka carbon nanotubes, piʻi ka thermal conductivity o nā mea i hoʻohui ʻia, a me ka ikaika tensile a me ka elongation i ka wā hoʻomaha e hoʻonui mua a laila e emi iho , Hoʻonui ʻia ke koʻikoʻi tensile a me ka ikaika haehae;i ka wā liʻiliʻi ka nui o nā nanotubes kalapona, ʻoi aku ka maʻalahi o ka hana ʻana i nā kaulahao hoʻokele wela ma mua o nā nanotubes kalapona liʻiliʻi, a ʻoi aku ka maikaʻi o ka hui pū ʻana me ka matrix.